An annual value of policing report has identified five police forces that would struggle to cope with further budget cuts.
The report, conducted by Her Majesty's Inspectorate of Constabulary's (HMIC), said it was "deeply disappointed" with "missed opportunities" to drive major efficiencies in some forces.
It added others would struggle to accommodate future cutbacks - identifying forces in West Yorkshire, South Yorkshire, Northamptonshire, Lincolnshire and Bedfordshire as facing a battle to provide "high-quality service" to the public.
More top news
Video shot in Islamic State capital Raqq purportedly shows at least two of three missing London schoolgirls.
A lawyer representing 35 families who lost loved-ones when a pilot deliberately crashed his plane 'can't explain' €25,000 offer.
Visitors were evacuated from a rollercoaster at Alton Towers after a power cut forced the ride to grind to a halt.